Makefile: always create directories before writing to them
Makefile: always create directories before writing to them

Simplify rules by removing $(TARGET_C) as explicit target.

lipiji/jblas,mpoussevin/jblas,linux-on-ibm-z/jblas,linux-on-ibm-z/jblas,lipiji/jblas,lipiji/jblas,mikiobraun/jblas,mpoussevin/jblas,mikiobraun/jblas,linux-on-ibm-z/jblas,mpoussevin/jblas,mikiobraun/jblas,mikiobraun/jblas